What is created by placing flowers or materials at different levels in an arrangement?

Depth refers to the three-dimensional quality of an arrangement that is achieved by varying the placement of flowers and materials at different levels. By incorporating elements at various heights, a designer can create visual interest and make the arrangement feel more dynamic and lifelike. This technique enhances the perception of space and dimensionality, helping viewers appreciate the work from multiple angles.

Proportion pertains to the size relationship between different elements within the arrangement, which can factor into how depth is perceived but does not inherently create it. Scale relates to the size of the arrangement in comparison to its environment or the intended setting. Unity focuses on how all the elements within the arrangement work together to create a cohesive whole. While all these concepts are important in floral design, they do not specifically denote the technique of layering materials to achieve depth.